Has anybody managed to connect a TP-Link HS100 Smart Plug with Z-Way? I could easily add the plug to my Wifi with TP-Link's Kasa App and Kasa also switches the plug fast and accurate. I can also add the plug as a Wifi device including IP address.

However, if I press the virtual switch in Z-Way interface, nothing happens.

Is anything missing? Do I need any additional plug-ins or setting on my Fritzbox? The Razberry is connected through a LAN cable, but as the plug as well as the Pi share the same Wifi, I assume this should be OK.